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Multiple choice
A unitary gate preserves total probability. For the output state with amplitudes
a
0
=
1
/
2
a_0 = 1/\sqrt{2}
a
0
=
1/
2
and
a
1
=
1
/
2
a_1 = 1/\sqrt{2}
a
1
=
1/
2
, what is
∣
a
0
∣
2
+
∣
a
1
∣
2
|a_0|^2 + |a_1|^2
∣
a
0
∣
2
+
∣
a
1
∣
2
?
🔬 try it before you answer
2
2
\sqrt{2}
2
≈ 1.414
1
1/2
Check answer